District of Columbia Code
Subchapter III - Civil Provisions of General Application
§ 46–353.03. Application of law of the District

Except as otherwise provided in this chapter, a responding tribunal of the District shall:
(1) Apply the procedural and substantive law generally applicable to similar proceedings originating in the District and may exercise all powers and provide all remedies available in those proceedings; and
(2) Determine the duty of support and the amount payable in accordance with the law and support guidelines of the District.
(Feb. 27, 2016, D.C. Law 21-73, § 303, 63 DCR 222.)